Indirect Adaptive Self-Regulating Fuzzy Control of Uncertain Nonlinear Systems Using Second Order Sliding Mode

2차 슬라이딩 모드를 이용한 불확실성을 갖는 비선형 시스템의 간접적응 자기조정 퍼지제어

In this paper, a second order fuzzy sliding mode control that combines with a adaptive self-regulating technique is proposed for a nonlinear system with unknown dynamics. The chattering effect that is a representative disadvantage of the sliding mode control is avoided by using the second order sliding mode control instead of the first order sliding mode control. The proposed sub-controller is composed of the equivalent control that is approximated by an online rule regulation sheme and the hitting control that is used to constrain the states of the sub-system to maintain on the sub-sliding surface and used to guarantee the system robustness. Simulation results are presented to show the effectiveness of the proposed controller